Algal Resources
Online ISSN : 2423-8473
Print ISSN : 1883-3284
Addendum
異なる地域に生育する褐藻アラメの高水温耐性
大竹 佑衣嶌田 智秋田 晋吾
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ジャーナル フリー

2020 年 13 巻 2 号 p. 85-89

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Kelp forests are important in coastal ecosystems as primary producers and
habitat for marine organisms. However, recent global warming has been inducing reductions of kelp forests in various parts of the world. This study investigated high-temperature tolerance of a representative kelp forest constituent Eisenia bicyclis collected from southern edge (Itoshima, Fukuoka Prefecture) and central (Tateyama, Chiba Prefecture) population. Adult sporophytes collected from the fields and juvenile sporophytes derived from gametophytes were used for the comparison. The sporophytes were cultivated under different temperature conditions: 20, 22, 24, 26, 28 and 30 ℃. Then, the maximum quantum yield (Fv /Fm) was measured using Imaging-PAM. The adult and juvenile sporophytes from Fukuoka maintained significantly higher Fv /Fm at 30 ℃ than those from Takeyama. This indicates that E. bicyclis from southern population (Fukuoka) has high-temperature tolerance.
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© 2020 日本応用藻類学会
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